#region License

/*
 * Copyright 2002-2010 the original author or authors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

#endregion

#region Imports

using System.Web;
using Spring.Web.UI;

#endregion

namespace Spring.Web.Support
{
    /// <summary>
    /// An <see cref="IResult"/> encapsulates concrete navigation logic. Usually executing a 
    /// result will invoke <see cref="HttpResponse.Redirect(string)"/> or <see cref="HttpServerUtility.Transfer(string, bool)"/>.
    /// </summary>
    /// <remarks>
    /// For a larger example illustrating the customization of result processing <see cref="ResultFactoryRegistry"/>.
    /// </remarks>
    /// <seealso cref="ResultFactoryRegistry"/>
    /// <seealso cref="IResult"/>
    /// <seealso cref="Result"/>
    /// <seealso cref="DefaultResultWebNavigator"/>
    /// <seealso cref="Page.SetResult(string, object)"/>
    /// <seealso cref="UserControl.SetResult(string, object)"/>
    /// <author>Erich Eichinger</author>
    public interface IResult
    {
        /// <summary>
        /// Execute the result logic within the given <paramref name="context"/>.
        /// </summary>
        /// <param name="context">the context to evaluate this request in.</param>
        void Navigate( object context );
        /// <summary>
        /// Returns an url representation of the result logic within the given <paramref name="context"/>.
        /// </summary>
        /// <param name="context">the context to evaluate this request in.</param>
        /// <returns>the url corresponding to the result instance.</returns>
        /// <remarks>
        /// The returned url is not necessarily fully qualified nor absolute. Returned urls may be relative to the
        /// given context.<br/>
        /// To produce a client-usable url, consider applying e.g. <see cref="System.Web.UI.Control.ResolveUrl"/> or 
        /// <see cref="System.Web.UI.Control.ResolveClientUrl"/> before writing the result url to the response.
        /// </remarks>
        string GetRedirectUri( object context );
    }
}